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Entropy

Invariant Quantum States of Quadratic Hamiltonians

V. V. Dodonov

Published May 19, 2021• 14 citations
Publisher

Abstract

The problem of finding covariance matrices that remain constant in time for arbitrary multi-dimensional quadratic Hamiltonians (including those with time-dependent coefficients) is considered. General solutions are obtained.
DOI
10.3390/e23050634

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